I just moved to a new state, but my previous bike shop was top notch. The owner knew me and many other long time customers. I'd go to him with a product or item and tell him what I was looking for. Sometimes he had it or could get it at a competitive price, sometimes he couldn't. He knew I and other customers bought stuff off the internet, but that he got the rest of my business. He was fine with it. He sold all kinds of bikes to all kinds of riders, so he didn't have a hissy fit or an attitude if you brought something in to be built, repaired etc... that he didn't sell you. You paid for the service and they took care of it. That is the way it should be. It sounds like the OP needs to find another bike shop.
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Just Do It..